期刊
PHYSICAL REVIEW LETTERS
卷 104, 期 25, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.251602
关键词
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资金
- NSF [PHY-0855425, PHY-05-51164, PHY-0756966, PHY-0757868]
- DOE [DE-FG02-90ER40542, DE-AC02-76SF00515]
- Stanford Institute for Theoretical Physics
- STFC [ST/G000581/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/G000581/1] Funding Source: researchfish
In D3-brane inflation, the inflaton potential receives important contributions from sources in the compact space, such as fluxes, other D-branes, and orientifold planes. Most previous analyses have considered only the effects of sources near to the inflationary D3-brane, but in fact distant sources do not generically decouple and can critically influence the dynamics during inflation. We provide a systematic method for incorporating the effects of arbitrary distant sources as perturbations to the local supergravity background. We use this approach to obtain the structure of the potential for a D3-brane in a warped throat geometry attached to a general compact space. A significant, and well-known, contribution to this potential arises from quantum effects involved in the stabilization of the compactification volume. Our method automatically captures these effects, encoding them in a suitable flux background.
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